Encontrados 15 documentos, a visualizar página 1 de 2
Experimental comparison of the performance of a journal bearing with a single a...
Brito, F. P.; Miranda, A. S.; Claro, José Carlos Pimenta; Fillon, M.It is often assumed that a journal bearing will operate more effectively with a twin groove arrangement than a single groove one, but little evidence has been presented in support of this. An experimental assessment of a journal bearing with either one or two axial grooves located perpendicularly to the load line was performed. It was found that under heavy loaded operation the twin groove configuration might a...
The role of lubricant feed temperature on the performance of twin groove journa...
Brito, F. P.; Miranda, A. S.; Claro, José Carlos Pimenta; Fillon, M.An experimental assessment of the influence of lubricant feed temperature (Tf) on the behaviour of twin groove hydrodynamic journal bearings has been undertaken. Several loads, shaft speeds and bearing geometries were tested under constant lubricant feed pressure (pf), while Tf took four different values between 29ºC and 58ºC. It was found that the increase of Tf has an effect in bearing performance which is an...
Experimental investigation of the influence of supply temperature and supply pr...
Brito, F. P.; Bouyer, J.; Fillon, M.; Miranda, A. S.An experimental study of the influence of oil supply temperature and supply pressure on the performance of a 100mm plain journal bearing with two axial grooves located at ±90º to the load line was carried out. The hydrodynamic pressure at the mid-plane of the bearing, temperature profiles at the oil-bush and oil-shaft interfaces, bush torque, oil flow rate, and the position of the shaft were measured for variab...
Experimental investigation on the thermal behavior and performance characterist...
Brito, F. P.; Bouyer, J.; Fillon, M.; Miranda, A. S.An experimental investigation of the influence of applied load and rotational speed on the performance of a 100mm diameter plain journal bearing with two axial grooves located at ±90º to the load line has been carried out. The applied load varied from 2 to 10kN, whereas the rotational speed ranged from 1000 to 4000 rpm. Measurements of hydrodynamic pressure, temperature profiles at the oil-bush and oil-shaft in...
Thermal behaviour and performance characteristics of a twin axial groove journa...
Brito, F. P.; Bouyer, J.; Fillon, M.; Miranda, A. S.An experimental study of the influence of applied load and oil supply temperature on the performance of a 100mm plain journal bearing with two axial grooves located at ±90º to the load line has been carried out. Hydrodynamic pressure at the mid-plane of the bearing, temperature profiles at the oil-bush and oil-shaft interfaces, bush torque, oil flow rate and shaft position were measured for variable operating c...
Temperature, flow, and eccentricity measurements in a journal bearing with a si...
Costa, Lucrécio; Miranda, A. S.; Claro, José Carlos Pimenta; Fillon, M.Parametric experiments were conducted to analyse the influence of some supply conditions on the performance of a steadily loaded journal bearing. The temperature distribution on the internal surface, the flow rate, and the bearing eccentricity were measured for different sets of operating conditions, under variable supply conditions. Quantitative information was provided which showed the effect of both shaft sp...
Experimental study of the influence of changes in load direction on the perform...
Costa, Lucrécio; Fillon, M.; Miranda, A. S.; Claro, José Carlos PimentaLaboratory tests have been carried out in order to investigate the influence of small changes in load direction on the performance of a steadily loaded hydrodynamic crown journal bearing. Hydrodynamic pressures, temperature distribution on the bush internal surface, shaft temperature, oil flow rate and bush torque were measured for fixed sets of operating conditions, at three different groove locations (4>) wit...
Estudo experimental da influência das condições de alimentação no desempenho de...
Costa, Lucrécio; Miranda, A. S.; Claro, José Carlos Pimenta; Fillon, M.Foi estudada experimentalmente a influência de alguns parâmetros de alimentação no desempenho de uma chumaceira radial hidrodinâmica com sulco de alimentação na linha de carga, carregada estaticamente. Os resultados obtidos mostram que a temperatura de alimentação condiciona fortemente todos os parâmetros de desempenho, enquanto que a pressão de alimentação afecta significativamente o caudal e ligeiramente a te...
An experimental investigation of the effect of groove location and supply press...
Costa, Lucrécio; Fillon, M.; Miranda, A. S.; Claro, José Carlos PimentaThis paper aims to present the results of parametric experiments carried out in order to study the influence of groove location and supply pressure on the performance of a steadily loaded journal bearing with a single-axial groove. Hydrodynamic pressure and temperature distributions on the bush urface, shaft temperature, flow rate and bush torque were measured at variable supply pressure, using bushes with a si...
Temperature, flow and eccentricity measurements in a journal bearing with a sin...
Costa, Lucrécio; Miranda, A. S.; Claro, José Carlos Pimenta; Fillon, M.Parametric experiments have been conducted to analyse the influence of some supply conditions on the performance of a steadily loaded journal bearing. Temperature distribution on the internal surface, flowrate and bearing eccentricity were measured for different sets of operating conditions, at variable supply conditions. Quantitative information is provided which shows the effect of both shaft speed and applie...
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